D0En Operations Guide
$Revision: 1.12 $
$Date: 1999/12/15 18:34:30 $GMT
The D0En cluster is the Enstore system that D0 is using to access
their Run II mass storage data. All nodes are Intel Lancewood
(L440GX+) motherboards with dual P!!!s running Linux 2.2.13 kernels.
SUPPORT POLICY:
- Fully supported 9 AM - 6 PM on weekdays.
- Best effort support, (fix what can be fixed from home) 6 PM - 9
PM on weekdays, 9 AM- 6 PM on weekends.
- No official support other times, special arrangements possible if
notified in advance.
- No official support during lab Christmas shutdown/layoff period
or any other holiday period.
- All requests for support should go to helpdesk@fnal.gov or call
the help desk at 2345. [During off hours, there might be a message
directing you to a different number to call.]. Alternatively, you can
use the help desk
web interface ; keeping in mind that that is only monitored during
normal work hours.
- The help desk will contact the Integrated
Systems and Development Department's Integrated Administration
Group to resolve the problem 9 AM - 9 PM, 7 days a week.. This
group will be able to call upon Enstore developers to help resolve
unfamiliar problems.
The D0En cluster consists of the following nodes:
- d0ensrv1: Runs Enstore file and volume clerk and pnfs namespace
- d0ensrv2: Runs Enstore configuration, logger, alarm and
inquisitor servers.
- d0ensrv3: Console Server
- d0ensrv4: Runs Enstore library manager and media changer
- d0ensrv5: Console Server
- d0enmvr4a-d0enmvr18a: Run Enstore movers.
NO user areas on these machines are backed up, system files
are backed up daily. Enstore related files are backed up much more
frequently.
Enstore provides a generic interface for experimenters to
efficiently use mass storage systems as easily as if they were native file
systems.